Note 10 - Postretirement Medical Benefits (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2013		2012		2013		2012
Service cost	$	158	$	154	$	315	$	308
Interest cost		138		152		276		304
Amortization of transition obligation		-		26		-		52
Recognized prior service cost		64		64		128		128
Recognized net actuarial loss		-		14		-		28
Net periodic benefit cost	$	360	$	410	$	719	$	820